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(1N0 Modl.) 2 Sheets-Sheet 1.

J. A. MARSH. AUTOMATIC HEATING AND LIGHTING DEVICE FOR VAPOR STOVES.

No. 413,809 4 Patented 001;. 29, 1889.

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2 SheetsSheet' 2.

. V J. A MARSH 7 AUTOMATIC HEATING AND LIGHTING DEVICE FOR VAPOR STOVES.lNO. 413,809.

Patented 00's. 29, 1889'.

m. w zrzns. PhORo-Lflhngnphor. Washington, u.c

"UNITED STAT S PATENT OFFICE.

. JAMES A. MARSH, or CLEVELAND, 01-110.

AUTOMATIC HEATING AND LIGHTING DEVICE FOR VAPOR-STOVES.-

SPECIFICATION forming part of Letters Patent No. 413,809, dated October29, 1889.

.Application filed January 18, 1888- Serial No. 261,081. (No model.)

, To all whom it may concern.-

- in the claims.

Be it known that-I, JAMES A. MARSH, a citizen of the United States,residing at Cleveland, in the county of Ouyahoga and State of Ohio, haveinvented certain new and useful Improvements in Automatic Heating andLighting Devices for Vapor-Stoves; and ,I do hereby declare that thefollowing is'a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to automatic heating and lighting devices forvapor-stoves, and is an improvement on my patent, No. $58,284:, datedFebruary 22, 1887;

The invention consists in the arrangement of two pipes between twoindividual generating gasoline-burners, substantially as shown anddescribed, and particularly pointed out p In the accompanying drawings,Figure 1 is a slde elevation of one form of a stove in which myinvention is employed. Fig. 2 is a are known as individual burners, orburn ers which generate their own gas, in contradistinction tosingle-generator stoves, or stoves in which a central burner generatesthe gas for all the burners, whether two or more, the gas in this casebeing conveyed through pipes from the central or generating burner towhat are termed the side burn ers.

- In the patent'on which this invention is an improvement a single pipeis employed between two burners, by which the heating and lighting ofone burner from another are effected. The present invention contemplatestwo pipes to perform the same functions-vi25, to heat and light. oneburner from another which is in gas and lighted.

Fig.

orifice G, through which vapor escapes to the burner. A horizontal arm Hon the elbow E connects the elbow E with a coupling-piece or elbow I,preferably screwed thereon, and which is provided with vapor-passageleading to the lateral jet-orifice K. A valve F controls the flow ofvapor to both jets G and K, while a valve G controls the jet G alone anda valve K controls jet K, so that vapor may flow to either at the willof the operator or be shut off at both. Above the jet-orifice K is aloop is for supporting the end of the upperconneoting-pipe L, as shown;but obviously this is a mere mechanical expedient, and any other meansof support may be provided.

Now,in order that the object of my invention may be carried out, Iprovide two pipes (each open at both ends) or tubes L and M, Fig. 1, thelower one of which aligns with the jet-orifice K and extends to theretort or gencrating-chamber of the opposite burner.-

Above the pipe or tube M is another pipe or tube L, resting thereon andsecured by solder, clamp, or other sufficient means. This pipe is openat both ends and extends to near the downwardly-arranged jets b in thebottom of burner B, while at the other end it stops short of the elbow,as seen in Fig. 1, and beneath the downward jets a in burner A. Bothpipes have a series of openings or holes lmrn, respectively, along theirmeeting edges and opposite each other, whereby vapor issuing into onemay enter the other, and

thus the two pipes together perform their allotted function. Acontinuous slot in each pipe extending the same distance, instead of theopenings, would answer the same purto the opposite end of pipe L and insuch manner as to light the gas issuing at that end from pipe M.Inasmuch as a-steady supply of gas is passing through pipe M from thejet K, a constant flame will be maintained at its opposite end, and thisflame furnishes the heat for placing burner A in a vaporizing condition. Meantime, and as long as these conditions are undisturbed, theexplosions through pipe L are going on at frequent intervals, whichprovides the necessary relighting medium in case by any accident theflame at end of pipe M becomes extinguished. This being the operationfor initially starting burner A and for maintaining the liame'near it,the method and act of relighting said burner, if it should be put out,are obvious, the constant flame or the rapidly-repeating explosions bothbeing available to do the work. On the other hand, if burner B should beextinguished by accident or otherwise without turning off the supply ofoil, the -gas will continue to escape into pipes L and M, as be- "fo're,and that portion or stream of gas eseaping from the pipes at burner Awill be ignited by the downwardly-directed jets a, when explosions willtravel in the opposite direction and ignite the burner B through itsjets 1). Of course the intervening pipes and mechanism for carrying outthis operation may be reversed as to the burners, and the same may berepeated between any number of burners in a stove.

In the form of attachments illustrated in Fig. 2 the lower pipecommunicates with the CL nmingling-chamber of the burner B and hat itsopposite end resting near the burner A and somewhat below the horizontaljets therein. one, the same as in the construction above described, andabout equidistant from the respective burners. It should approach nearthe end of the lower pipe at the free end of said pipe, so that it willnot fail to light the gas at that point should the jet usually presentthere when the gas is on become extinguished. The operation in this formof stove is as follows: Assuming that the burner B is in gas and thecock m open, a quantity of gas will flow through pipe M and "escape atits end and a portion will escape through the openings Z m to the pipeL, which will issue therefrom at both ends. The gas escaping at burner Bwill be ignited by the jet-flames at the side of said burner and conveya flame by regular and rapid explosions through pipe L to its oppositeend. The gas flowin g from the corresponding end of pipe M will thusbecome ignited and establish a permanent flame for The upper pipe restson the lower heating the burner A. The burner A, being heated, will soongenerate its own gas and be in readiness for use. Then, if said burnershould be extinguished, the means here described would relight it; or,if the burner B should be extinguished and still being in gas, more orless, it will be automatically lighted from burner A, the explosions inthat case traversing the pipe in the opposite direction.

In Fig. 3 I show how the same principle may be extended to an oven 0,the pipes L and M in this instance being either bent or provided withsuitable elbow-joints to adapt them to the'ch'ange. The arrangement ofthe pipes may be side by side instead of one above the other, in whichcase one or both ends of the lower pipe may bebent oreurved to make theconnection.

It will be understood, as before stated, that the use of 'the'tubes islimited to individual or self --generatin g burners, and that said tubesare not adapted to 'work on whatis known as a single generating stove,where only one generator is used to 'supplyvaporto itself and to all theother "burners in the stove, Whether two or more. Two "self-generatorsare necessary factors in the constructionyand the invention comprisess'uc'h burners withthe tubes, as "h'ereinb'efore described.

I claim 1. In a vapor-stove, a pair'of individual or independentgenerating-burners and pipes or tubes leading to each burner to supplyoil thereto, in combination with two pipes arranged between saidbur'n'ers, one of said pipes serving to heat one burner from another andthe other to light one burner from another, said pipes situated oneabove the other, and the heating pipe or tube perforated to supply vaporto the lighting pipe or tube, substantially as set forth.

2. In a vapor-stove, two individual selfgeneratin'g burners and pipes tosupplyoil to each burner separately, in combination with two other pipessituated between the said burners and apart from the burner-cones atboth ends, said pipes located one above the other, and the lower pipeserving to heat and the upper pipe serving to light one burner fromanother, substantially asset forth.

3. In a vapor-burner stove, two burners having independent oil-supply,in combination with a heating-tube having both ends open to the outerair, one end in proximity to a burner and the other burner provided witha coupling at its side having ajet-orific'e for the escape of vapor intothe end of the tube, and suitable mechanism for holding said tube in arigid position, substantially as and for the purpose specified.

H. '1. FISHER, I. L. COREY.

